[gimp] app: factor out the creation of GeglOperation config proxy objects

[Michael Natterer <mitch src gnome org>]

commit fd033afe115f76a46f4b8843613126c8ab8ec98d
Author: Michael Natterer <mitch gimp org>
Date:   Mon Mar 26 19:11:29 2012 +0200

    app: factor out the creation of GeglOperation config proxy objects

 app/Makefile.am                   |    3 +-
 app/gegl/Makefile.am              |    2 +
 app/gegl/gimp-gegl-config-proxy.c |  199 +++++++++++++++++++++++++++++++++++++
 app/gegl/gimp-gegl-config-proxy.h |   25 +++++
 app/tools/gimpgegltool.c          |  171 +-------------------------------
 5 files changed, 231 insertions(+), 169 deletions(-)
---
diff --git a/app/Makefile.am b/app/Makefile.am
index 5a50237..1435e85 100644
--- a/app/Makefile.am
+++ b/app/Makefile.am
@@ -147,7 +147,8 @@ AM_LDFLAGS = \
 	$(workaround_that_core_depends_on_xcf)		\
 	$(workaround_that_core_depends_on_pdb)		\
 	$(workaround_that_plug_in_depends_on_pdb)	\
-	$(workaround_that_file_depends_on_plug_in)
+	$(workaround_that_file_depends_on_plug_in)	\
+	-u $(SYMPREFIX)gimp_param_spec_duplicate
 
 gimpconsoleldadd = \
 	xcf/libappxcf.a			\
diff --git a/app/gegl/Makefile.am b/app/gegl/Makefile.am
index 59ee0b8..a47acaf 100644
--- a/app/gegl/Makefile.am
+++ b/app/gegl/Makefile.am
@@ -20,6 +20,8 @@ libappgegl_a_sources = \
 	gimp-gegl-types.h			\
 	gimp-gegl.c				\
 	gimp-gegl.h				\
+	gimp-gegl-config-proxy.c		\
+	gimp-gegl-config-proxy.h		\
 	gimp-gegl-nodes.c			\
 	gimp-gegl-nodes.h			\
 	gimp-gegl-utils.c			\
diff --git a/app/gegl/gimp-gegl-config-proxy.c b/app/gegl/gimp-gegl-config-proxy.c
new file mode 100644
index 0000000..4075597
--- /dev/null
+++ b/app/gegl/gimp-gegl-config-proxy.c
@@ -0,0 +1,199 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gegl.h>
+
+#include "libgimpconfig/gimpconfig.h"
+
+#include "gimp-gegl-types.h"
+
+#include "core/gimpobject.h"
+#include "core/gimpparamspecs-duplicate.h"
+
+#include "gimp-gegl-config-proxy.h"
+
+
+static GValue *
+gimp_gegl_config_value_new (GParamSpec *pspec)
+{
+  GValue *value = g_slice_new0 (GValue);
+
+  g_value_init (value, pspec->value_type);
+
+  return value;
+}
+
+static void
+gimp_gegl_config_value_free (GValue *value)
+{
+  g_value_unset (value);
+  g_slice_free (GValue, value);
+}
+
+static GHashTable *
+gimp_gegl_config_get_properties (GObject *object)
+{
+  GHashTable *properties = g_object_get_data (object, "properties");
+
+  if (! properties)
+    {
+      properties = g_hash_table_new_full (g_str_hash,
+                                          g_str_equal,
+                                          (GDestroyNotify) g_free,
+                                          (GDestroyNotify) gimp_gegl_config_value_free);
+
+      g_object_set_data_full (object, "properties", properties,
+                              (GDestroyNotify) g_hash_table_unref);
+    }
+
+  return properties;
+}
+
+static GValue *
+gimp_gegl_config_value_get (GObject    *object,
+                            GParamSpec *pspec)
+{
+  GHashTable *properties = gimp_gegl_config_get_properties (object);
+  GValue     *value;
+
+  value = g_hash_table_lookup (properties, pspec->name);
+
+  if (! value)
+    {
+      value = gimp_gegl_config_value_new (pspec);
+      g_hash_table_insert (properties, g_strdup (pspec->name), value);
+    }
+
+  return value;
+}
+
+static void
+gimp_gegl_config_set_property (GObject      *object,
+                               guint         property_id,
+                               const GValue *value,
+                               GParamSpec   *pspec)
+{
+  GValue *val = gimp_gegl_config_value_get (object, pspec);
+
+  g_value_copy (value, val);
+}
+
+static void
+gimp_gegl_config_get_property (GObject    *object,
+                               guint       property_id,
+                               GValue     *value,
+                               GParamSpec *pspec)
+{
+  GValue *val = gimp_gegl_config_value_get (object, pspec);
+
+  g_value_copy (val, value);
+}
+
+static void
+gimp_gegl_config_class_init (GObjectClass *klass,
+                             const gchar  *operation)
+{
+  GParamSpec **pspecs;
+  guint        n_pspecs;
+  gint         i;
+
+  klass->set_property = gimp_gegl_config_set_property;
+  klass->get_property = gimp_gegl_config_get_property;
+
+  pspecs = gegl_list_properties (operation, &n_pspecs);
+
+  for (i = 0; i < n_pspecs; i++)
+    {
+      GParamSpec *pspec = pspecs[i];
+
+      if ((pspec->flags & G_PARAM_READABLE) &&
+          (pspec->flags & G_PARAM_WRITABLE) &&
+          strcmp (pspec->name, "input")     &&
+          strcmp (pspec->name, "output"))
+        {
+          GParamSpec *copy = gimp_param_spec_duplicate (pspec);
+
+          if (copy)
+            {
+              g_object_class_install_property (klass, i + 1, copy);
+            }
+        }
+    }
+
+  g_free (pspecs);
+}
+
+GimpObject *
+gimp_gegl_get_config_proxy (const gchar *operation)
+{
+  static GHashTable *config_types = NULL;
+  GType              config_type;
+
+  if (! config_types)
+    config_types = g_hash_table_new_full (g_str_hash,
+                                          g_str_equal,
+                                          (GDestroyNotify) g_free,
+                                          NULL);
+
+  config_type = (GType) g_hash_table_lookup (config_types, operation);
+
+  if (! config_type)
+    {
+      GTypeInfo info =
+      {
+        sizeof (GimpObjectClass),
+        (GBaseInitFunc) NULL,
+        (GBaseFinalizeFunc) NULL,
+        (GClassInitFunc) gimp_gegl_config_class_init,
+        NULL,           /* class_finalize */
+        operation,
+        sizeof (GimpObject),
+        0,              /* n_preallocs */
+        (GInstanceInitFunc) NULL,
+      };
+
+      const GInterfaceInfo config_info =
+      {
+        NULL, /* interface_init     */
+        NULL, /* interface_finalize */
+        NULL  /* interface_data     */
+      };
+
+      gchar *type_name = g_strdup_printf ("GimpGegl-%s-config",
+                                          operation);
+
+      g_strcanon (type_name, G_CSET_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
+
+      config_type = g_type_register_static (GIMP_TYPE_OBJECT, type_name,
+                                            &info, 0);
+
+      g_free (type_name);
+
+      g_type_add_interface_static (config_type, GIMP_TYPE_CONFIG,
+                                   &config_info);
+
+      g_hash_table_insert (config_types,
+                           g_strdup (operation),
+                           (gpointer) config_type);
+    }
+
+  return g_object_new (config_type, NULL);
+}
diff --git a/app/gegl/gimp-gegl-config-proxy.h b/app/gegl/gimp-gegl-config-proxy.h
new file mode 100644
index 0000000..55298aa
--- /dev/null
+++ b/app/gegl/gimp-gegl-config-proxy.h
@@ -0,0 +1,25 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_GEGL_CONFIG_PROXY_H__
+#define __GIMP_GEGL_CONFIG_PROXY_H__
+
+
+GimpObject * gimp_gegl_get_config_proxy (const gchar *operation);
+
+
+#endif /* __GIMP_GEGL_CONFIG_PROXY_H__ */
diff --git a/app/tools/gimpgegltool.c b/app/tools/gimpgegltool.c
index e579eab..f29b85b 100644
--- a/app/tools/gimpgegltool.c
+++ b/app/tools/gimpgegltool.c
@@ -29,6 +29,8 @@
 
 #include "tools-types.h"
 
+#include "gegl/gimp-gegl-config-proxy.h"
+
 #include "core/gimpdrawable.h"
 #include "core/gimperror.h"
 #include "core/gimpimage.h"
@@ -458,173 +460,6 @@ gimp_gegl_tool_config_notify (GObject      *object,
   gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (tool));
 }
 
-static GValue *
-gimp_gegl_tool_config_value_new (GParamSpec *pspec)
-{
-  GValue *value = g_slice_new0 (GValue);
-
-  g_value_init (value, pspec->value_type);
-
-  return value;
-}
-
-static void
-gimp_gegl_tool_config_value_free (GValue *value)
-{
-  g_value_unset (value);
-  g_slice_free (GValue, value);
-}
-
-static GHashTable *
-gimp_gegl_tool_config_get_properties (GObject *object)
-{
-  GHashTable *properties = g_object_get_data (object, "properties");
-
-  if (! properties)
-    {
-      properties = g_hash_table_new_full (g_str_hash,
-                                          g_str_equal,
-                                          (GDestroyNotify) g_free,
-                                          (GDestroyNotify) gimp_gegl_tool_config_value_free);
-
-      g_object_set_data_full (object, "properties", properties,
-                              (GDestroyNotify) g_hash_table_unref);
-    }
-
-  return properties;
-}
-
-static GValue *
-gimp_gegl_tool_config_value_get (GObject    *object,
-                                 GParamSpec *pspec)
-{
-  GHashTable *properties = gimp_gegl_tool_config_get_properties (object);
-  GValue     *value;
-
-  value = g_hash_table_lookup (properties, pspec->name);
-
-  if (! value)
-    {
-      value = gimp_gegl_tool_config_value_new (pspec);
-      g_hash_table_insert (properties, g_strdup (pspec->name), value);
-    }
-
-  return value;
-}
-
-static void
-gimp_gegl_tool_config_set_property (GObject      *object,
-                                    guint         property_id,
-                                    const GValue *value,
-                                    GParamSpec   *pspec)
-{
-  GValue *val = gimp_gegl_tool_config_value_get (object, pspec);
-
-  g_value_copy (value, val);
-}
-
-static void
-gimp_gegl_tool_config_get_property (GObject    *object,
-                                    guint       property_id,
-                                    GValue     *value,
-                                    GParamSpec *pspec)
-{
-  GValue *val = gimp_gegl_tool_config_value_get (object, pspec);
-
-  g_value_copy (val, value);
-}
-
-static void
-gimp_gegl_tool_config_class_init (GObjectClass *klass,
-                                  const gchar  *operation)
-{
-  GParamSpec **pspecs;
-  guint        n_pspecs;
-  gint         i;
-
-  klass->set_property = gimp_gegl_tool_config_set_property;
-  klass->get_property = gimp_gegl_tool_config_get_property;
-
-  pspecs = gegl_operation_list_properties (operation, &n_pspecs);
-
-  for (i = 0; i < n_pspecs; i++)
-    {
-      GParamSpec *pspec = pspecs[i];
-
-      if ((pspec->flags & G_PARAM_READABLE) &&
-          (pspec->flags & G_PARAM_WRITABLE) &&
-          strcmp (pspec->name, "input")     &&
-          strcmp (pspec->name, "output"))
-        {
-          GParamSpec *copy = gimp_param_spec_duplicate (pspec);
-
-          if (copy)
-            {
-              g_object_class_install_property (klass, i + 1, copy);
-            }
-        }
-    }
-
-  g_free (pspecs);
-}
-
-static GimpObject *
-gimp_gegl_tool_get_config (GimpGeglTool *tool)
-{
-  static GHashTable *config_types = NULL;
-  GType              config_type;
-
-  if (! config_types)
-    config_types = g_hash_table_new_full (g_str_hash,
-                                          g_str_equal,
-                                          (GDestroyNotify) g_free,
-                                          NULL);
-
-  config_type = (GType) g_hash_table_lookup (config_types, tool->operation);
-
-  if (! config_type)
-    {
-      GTypeInfo info =
-      {
-        sizeof (GimpObjectClass),
-        (GBaseInitFunc) NULL,
-        (GBaseFinalizeFunc) NULL,
-        (GClassInitFunc) gimp_gegl_tool_config_class_init,
-        NULL,           /* class_finalize */
-        tool->operation,
-        sizeof (GimpObject),
-        0,              /* n_preallocs */
-        (GInstanceInitFunc) NULL,
-      };
-
-      const GInterfaceInfo config_info =
-      {
-        NULL, /* interface_init     */
-        NULL, /* interface_finalize */
-        NULL  /* interface_data     */
-      };
-
-      gchar *type_name = g_strdup_printf ("GimpGeglTool-%s-config",
-                                          tool->operation);
-
-      g_strcanon (type_name, G_CSET_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
-
-      config_type = g_type_register_static (GIMP_TYPE_OBJECT, type_name,
-                                            &info, 0);
-
-      g_free (type_name);
-
-      g_type_add_interface_static (config_type, GIMP_TYPE_CONFIG,
-                                   &config_info);
-
-      g_hash_table_insert (config_types,
-                           g_strdup (tool->operation),
-                           (gpointer) config_type);
-    }
-
-  return g_object_new (config_type, NULL);
-}
-
 static void
 gimp_gegl_tool_operation_changed (GtkWidget    *widget,
                                   GimpGeglTool *tool)
@@ -669,7 +504,7 @@ gimp_gegl_tool_operation_changed (GtkWidget    *widget,
 
   gimp_image_map_tool_create_map (GIMP_IMAGE_MAP_TOOL (tool));
 
-  tool->config = gimp_gegl_tool_get_config (tool);
+  tool->config = gimp_gegl_get_config_proxy (tool->operation);
 
   if (tool->options_table)
     {